Carpet-cleaning apparatus



Ni. R.10HNSON AND 0. N. HALVERSON.

CARPET CLEANING APPARATUS.

APPLICATION FILED Nov.22,1919.

Patented June s, 1920.

mwmtow @.Njavers 072 @Woe/neg M. R. JOHNSON AND 0. N. HALVERSON.

CARPET CLEANING APPARATUS.

APPLICATION FILED NOV22I i919.

Patented Jupe s, 1920.

4 SHEETS-SHEET 2.

M. R. JOHNSON AND 0. N. HALVERSON.

CARPET CLVEANLNG APPARATUS. APPLICAHON FILED Nov. 22. 1919.

4 SHEETS-SHEET 3.

'1 ,343, 1 37 Patented June 8, 1920.

@WMM m M. R. loHNsoN AND 0. N. HALVEHSON.

CARPET CLEANING APPARATUS.

APPLICATION FILED NOV.22, 1,919.

Patented June 8, 1920.

4 SHEETS-SHEET 4.

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UNITED STATES PATENT OFHQE,

MORRISON R. JOHNSON AND OTTO N. HAL'VERSON, 0F LEWISTOWN, MONTANA.

CARPET-CLEANING APPARATUS.

Specification of Letters Patent.

Patented June 8, 1920.

To all whom t may concern:

Be it known that we, MOnnrsON R. JOHN- soN and OTTO N. HALvnnsoN, citizens'of the United States, residing at Lewistown, in the county of Fergus and State of Montana, have invented certain new and useful Improvements in Carpet-Cleaning Apparatus; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon1 which form a part of this specification.

This invention relates to new and useful improvements in carpet cleaning apparatus, and comprises a simple and efficient mechanism of this nature, so arranged that the carpet will be thoroughly cleansed by beating straps mounted upon a rapidly rotating member, and in the provision of means for adjusting the apparatus for regulating the pressure with which the brushes are held against the carpet, and also in the provision of means for adjusting one of the rollers over which carpet travels as an endless belt conveyer while being cleansed.

The invention comprises various other details of construction, combination and arrangementof parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims.

Our invention is illustrated in the accompanying drawings which, with the numerals of reference marked thereon, form a part of this application, and in which:

Figure l is a side elevation of the apparatus. t

Fig. 2 is a front view.

Fig. 3 is a top plan view.

Fig. 4; is a rear view.

Fig. 5 is an enlarged detail sectional view of the clamping means for adjusting one of the rollers, on line 5 5 of Fig. 1, and

Figs. G and 7 are details of parts of the invention.

Reference now being had to the details of the drawings by numerals:

1 designates the frame of the apparatus and in which are journaled in suitable bearings four rollers, designated respectively by numerals 2, 3, t and 5. The roller 2 is provided with a roughened surface 6 of emerycloth, or other suitable material, and a pulley 2 is keyed to a projecting spindle end thereof, and which has Ybelted connection with a grooved pulley 8 fixed to a shaft 9 which is journaled in suitable bearings upon the frame. The shaft 9 also has pulleys 10 and 1l keyed thereto, and 12 is a belt passed about the pulley 10 and also the pulley l1 which is fixed to the shaft 14 of the fan 15.

Fixed to the shaft 9 is a cylinder 16 having a screen circumference and to which are attached a 'series of rings 18 in any suitable manner, and to which rings the straps 18 are connected preferably by means of snap hooks 18X, and which straps are spaced apart the entire length of the cylinder and which are adapted to be thrown violently against the carpet 19 which is fed about the several roliers, the ends of the carpet first being temporarily fastened together, so that it will travel as an endless belt, being driven by the rough abrading surface upon the roller 2 by frictional contact therewith.

Mounted in the standard 21, which has a screw 22 passing therethrough and in a standard 23, is a shaft 24:, to the projecting end of which pulley 25 is keyed which has belted connection 2G with the pulley 11, and 27 is a driving pulley which is also keyed to the shaft 9 and which is adapted to be driven by any source of supply of power, not shown.

Fixed to the shaft 24 are the cross bars 28 carrying at their ends clamping bars 29 held together by means of bolts upon which are mounted threaded nuts. Between the clamping bars are bunches of brush fiber 30 which are preferably folded in the manner shown, and securely clamped between the bars by tightening the nuts.

The roller t is mounted in clamping members 3l which are movable in elongated slots 32 formed in the rack 33, which rack is mounted upon pivots 34 upon the standards 21. Upright bars 35 are provided with apertures 36 therein, and which bars 35 pass through the slots 32, and pins 37 mounted in the apertures 36 of the bars 85 are adapted to hold the swinging rack 33 at different elevations according as it may be desired to raise or lower the roller 4, over which the carpet passes, and by reason of its peculiar way of being mounted, will bring the carpet nearer to or farther away from the brushes as they are rapidly rotated against the carpet.

The clamping members 31 are adjustable within the slots of the rack 33. Links 40 are pivoted at their inner ends to the upper portions of the clamping members 31 and their outer ends are connected to a clevisshaped bolt 3l', and pass through slots formed in the opposite, faces of the laterally extending portions of the clamping members, and their lower threaded ends receive nuts 42. Plates 48 and tt'have apertures therein to receive the clevis-shaped bolts, one plate resting upon the upper edge of the slotted bars of the rack and the upper edge of the lateral eXtension'of-the clamping member, while the other or under ofthe apertured bars bear against the under edge of the slotted bar or rack and the under edge of the lateral extension of said clamping member.

A cam lever l5 is pivotally mounted upon the clevis-shaped bolt intermediate the links 40, and is adapted to fulcrum against the upper of said apertured plates, so that when the cam member is swung upon its pivot, the plates will hold the clamping member frictionally in an adjusted position.

In operation, power is applied to the shaft 9, and through the belted connections described, the cylinder carrying the straps will be given a rapid rotary movement against the carpet, the ends of which have been fastened together, and which carpet is fed forward as an endless belt, being fed by friction. As the straps violently strike against the carpet the dust will be driven laterally by the fan which is rotated by belted connections with the driving shaft.

The rotary shaft carrying the brushes willl switch against the carpet, the portions intermediate the rollers 3 and 4 being regulated by the swinging rack which is adapted to be .raised and lowered and held in different positions. If narrow strips of carpet are to be cleaned, certain of straps may be removed, only utilizing those which would be needed to strike the carpet, the distance between the straps varying as may be desired.

That we claim to be new is.:

l. A carpet cleaning apparatus compr-ising a frame and a driving shaft, rollers about which the carpet with the' endsl fastened together travels as an endless belt, frictional means for causing the carpet to rotate about the rollers, a rotary brush, a swinging rack upon which one of said rollers is mounted, clamping members mounted upon said rack, and in which members one of said rollers has bearings, and means for holding the clamping members in adjusted positions.

2. A carpet cleaning apparatus comprising a frame and a driving shaft, rollers about which the carpet with the ends fastened together travels as an endless belt, frictional means for causing the carpet to rotate about the rollers, a rotary brush, a swinging rack upon which one of said rollers is mounted, clamping members mounted upon said rack, and in which members one of said rollers has bearings, cam levers having pivotal link connections with each clamping member, and means cooperating therewith for clamping and holding said members in different adjusted positions. v

3. A carpet cleaning apparatus .comprising a frame and a driving shaft, rollers about which the carpet with the ends fastened together travels as an endless belt,

frictional means-for causing the carpet to rotate about the rollers, a rotary brush, a swinging rack upon which one of said rollers is mounted, clamping members mounted upon said rack, and in which members one of said rollers has bearings, and means for holding the clamping members in adjusted positions, comprising links pivotally connected to each clamping member, a clevis-bolt connected to said links, plates through which the arms of the clevis-bolt` pass,and a cam lever pivotally mounted upon the clevis-bolt and adapted to cooperate with said plates to hold the.

clamping members frictionally in adjusted positions. Y

ll. A carpet cleaning apparatus comprising a frame and a driving shaft, rollers about which the carpet with the ends fastened together travels as an endless belt, frictional means for causing the carpet to rotate about the rollers, a rotary brush, and i means for regulating the pressure with which the brushes bear against the carpet, comprising a swinging rack pivoted to the frame and having slotted portions, clamping members movable within said slots and in which one of said rollers is journaled, links pivotally connected to said members, clevisbolts. engaging the links, apertured plates upon the clevis members, nuts mounted upon the threaded ends ofthe clevis bolts, cam levers pivotal-ly connected to the clevis bolt between said links and adapted to cooperatewith said plates to frictionally hold the clamping members in adjusted positions.

ln testimony whereof we hereunto aflix our signatures.

Moiiiiisoiv R. JoiiNsoN. o'iro N. iiALvinisoN. 

